将太阳磁性、极端太阳粒子事件和恒星超闪焰联系起来
Linking Solar Magnetism, Extreme Solar Particle Events and Stellar Superflares
AI总结：
研究太阳磁性、极端太阳粒子事件和恒星超闪焰之间的潜在联系，探讨其物理机制和能量释放过程。
摘要：
太阳的磁场驱动了从小尺度纳米闪焰到大闪焰和日冕质抛射（CMEs）的广泛爆发现象。尽管直接观测太阳活动只覆盖了过去几十年，但间接证据表明，太阳偶尔会产生比现代时代记录的任何事件强大数个数量级的事件。有两种互补的证据。首先，极端太阳粒子事件（ESPEs）已从过去15000年中精确 dating 的自然档案如年轮和冰芯中显著的同位素浓度尖峰中推断出来。其次，高精度空间载荷光度计揭示了数千颗恒星上类似于太阳的超闪焰。这些太阳和恒星极端是否在物理上相关仍是一个开放问题。我们总结了目前的理解状态，并讨论可能将它们联系起来的物理机制。尽管超闪焰和ESPEs都是磁能存储和释放的极端能量表现，但它们的关系似乎不是一对一的。它们的发生和能量可能取决于磁通量和拓扑如何控制释放能量在辐射、质量抛射和粒子加速之间的分配。
英文摘要：
The magnetic field of the Sun drives a wide range of eruptive phenomena, from small-scale nanoflares to large flares and coronal mass ejections (CMEs). While direct observations of solar activity cover only the past few decades, indirect evidence indicates that the Sun can occasionally produce events orders of magnitude stronger than any recorded ones in the modern era. Two complementary lines of evidence exist. First, extreme solar particle events (ESPEs) have been inferred from prominent spikes in cosmogenic isotope concentrations preserved in precisely dated natural archives such as tree rings and ice cores over the past 15 millennia. Second, high-precision space-borne photometry has revealed superflares on thousands of stars similar to the Sun. Whether these solar and stellar extremes are physically related remains an open question. We summarise the present state of understanding and discuss physical mechanisms that may link them. Although superflares and ESPEs are both extremely energetic manifestations of magnetic energy storage and release, their relationship does not appear to be one-to-one. Their occurrence and energetics likely depend on how magnetic flux and topology govern the partitioning of released energy between radiation, mass ejection, and particle acceleration.
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